{"cve":"CVE-2026-40168","nvd":{"published":"2026-04-10T20:16:22.643","modified":"2026-10-26T21:10:00.170","status":"Analyzed","description":"Postiz is an AI social media scheduling tool. Prior to 2.21.5, the /api/public/stream endpoint is vulnerable to SSRF. Although the application validates the initially supplied URL and blocks direct private/internal hosts, it does not re-validate the final destination after HTTP redirects. As a result, an attacker can supply a public HTTPS URL that passes validation and then redirects the server-side request to an internal resource.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L","score":8.2},"cwes":["CWE-918"],"references":["https://github.com/gitroomhq/postiz-app/commit/30e8b777098157362769226d1b46d83ad616cb06","https://github.com/gitroomhq/postiz-app/releases/tag/v2.21.5","https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-34w8-5j2v-h6ww","https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-34w8-5j2v-h6ww"],"products":["gitroom:postiz"],"source":"nvd","synced_at":"2026-10-26T21:38:48.864438205+00:00"},"epss":{"cve":"CVE-2026-40168","score":0.00371,"percentile":0.30827,"date":"2026-10-26"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}